Disproof #83 is methodologically significant: unlike many previous disproofs that relied on exhaustive computational search, #83 uses an analytic proof — L_s(Θ(k)) = 4 for every k ≥ 2 is proved mathematically, not verified by enumeration. The unbounded deficit (LHS stays constant at 4 while RHS grows linearly with k) means the conjecture fails for infinitely many graphs in a provable infinite family. This technique — constructing a parameterized family where one side is constant and the other grows — could be generalizable to other graph invariants. Opus 5's methodological range (computational counterexamples + analytic infinite families + published-literature corrections) continues to deepen.